You Don’t See This Every Day

Chopper Will Hoist & Help Assemble Giant Poles at Site of PSE Transmission Line Project in Thurston County

BELLEVUE, Wash. (4/28/14) – Puget Sound Energy is building a new high-capacity electric transmission line in Thurston County – and things are about to get even more interesting.

On Tuesday, sections for a pair of 145-foot steel poles will be hoisted into position using a construction helicopter. The terrain and topography north of Yelm make this the best, most efficient way to build this part of the 230 kilovolt (kV) transmission line, which will reach from PSE’s St. Clair substation to an intersection point with the Bonneville Power Administration’s 230 kV transmission line to the south.

The project is needed to respond to the area’s growing need for power, and increase overall reliability for more than 120,000 customers in Thurston County.

Photo & video opportunity


A construction helicopter will lift pole segments into position for assembly


Tuesday, April 29, starting at 8:30 a.m.


Meet at a staging area for the best viewing. Go to 1611 Old Pacific Highway SE in Olympia. Enter gate access (south of Reservation Road) and follow the gravel road to the left (south) down the hill to a large gravel open area. See attached map. (0/3 and 0/4 are where the two poles will be set.)


We’ll have PSE engineers and staff at the site to help answer any questions.  More on the project can be found here.

Transmission lines move high-voltage electricity from power generation sources such as dams and wind generating facilities to substations in local communities.

Substations contain utility circuit protection, voltage regulation, and equipment that reduce higher voltage to lower voltage so it can be used by customers at homes and businesses.

About Puget Sound Energy

Puget Sound Energy is Washington state’s oldest local energy company. We serve 1.1 million electric customers and more than 760,000 natural gas customers in 10 counties. For more information, visit Also follow us on Facebook and Twitter.

Media Contact

Ray Lane, 1-888-831-7250